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Old 07-18-2002, 09:37 PM
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Post how do I identefy my Windsor?

hello,I have a V8 engine that I think is a 302Windsor.I'm planning on rebuilding it for a challenge.How can I work out what my engine is?

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Old 07-18-2002, 11:17 PM
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If it is a windsor, measure the intake manifold width. Im not completely sure but i think the 302s is 7 inches and the 351 is 9 inches. If you give me the casting numbers found under the right side of the block i can tell you for sure and what year its from.
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Old 07-21-2002, 07:13 PM
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i had the same problem a while back i had an engine without an intake or carb i bought and i couldnt tell if it was either a 302 or a 351 seeig as they are the same blocks.
Now from my predicament, this is what i found out...the casting numbers on the side of the block are a date and application code from the factory every engine for a f150 i believe in 87 had the same casting numbers on the engine no matter what the size, 6, 8 diesel.. didnt matter.
i measured it up, the 302's are not 7 inches wide i dont know who got them measurements but theyre wrong.
i measured 5 302's from 75 up to 90, they all were 9 1/2 inches wide. then i found out that you can swap intakes between a 302 and a 351 which i think is impossible because the heads are so much bigger on a 351. but to make absolute sure that mine was a 302 i measured up the heads from existing 302s and matched them up to mine i dont remember th exact specs but i think they were around 5 inches tall at the highest point and 3 1/2 inches wide, dont take my word on that. it seems that everyone on this site knows something different about 302's and 351's but each answer will contradict another one so dont take everyone totally serious find out from someone who has a 302 and get their specs and measure up yours hope you have better luck than i did keep me informed!!
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Old 07-21-2002, 11:42 PM
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Ok, before I was just too lazy to go out in the garage and measure the width of my 302. BUT, i just measured it and the intake manifold is 8 and a half inches wide at the front at is widest point. This will be the same for every 289 or 302 because they never changed their intake manifold size. If your intake manifold is off, in the lifter valley if its a 302 there will be "302" casted in the lifter valley, ditto for the 351. Also, the only difference between the 351 and the 302 block is the taller deck height. The 302 has a 8.2 inch deck height and the 351 has a 9.2 inch deck height. This means that on a 302 the distance between the top of the cylinder to the middle of the main journal is 8.2 inches. The actual outside dimensions of any stock 302 or 351 head are virtually identical. 351c is an exception because their outside dimension is much larger than a 302/351w. The only differences lie inside. Measuring your head would be useless. Another easy way to tell if its a 351 or 302 is head bolt size. 302s have a 7/16 head bolt which uses a 5/8s socket and 351s have a 1/2 inch head bolt which uses...i think either a 13/16s or 3/4 inch socket. Becuase the deck height is taller on a 351, the heads are moved out farther, this is why the 351 intake manifold is a couple inches wider than a 302s. It would be virtually impossible to use a 302 intake manifold on a 351 because you would have a huge gap on either side. So, let us know what kind of engine it is.
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Old 07-22-2002, 07:03 PM
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(july 22, 2002: Message edited by: FASTFORD ]

[ October 15, 2002: Message edited by: FASTFORD ]</p>
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Old 07-23-2002, 04:33 PM
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I have a 302 out of an 85 crown vic sitting in my garage and I cant find the "302" stamped in the lifter valley. But i know its a 302, because it has a 3.00 inch stroke. If your not sure if it is a 351 or 302, pop the heads off and put a ruler on top of one of the pistons. Measure how far the piston goes down from top dead center (TDC). On a 302, it will go down 3 inches. On a 351, it will go down 3.5 inches because the 351 has a 3.5 inch stroke.
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Old 07-23-2002, 08:00 PM
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Intake manifolds from 302w and 351w DO NOT interchange! The deck height of the two motors is not the same and never has been period. The 351 is wider at the intake because the block is taller. If you set the two engines side by side the difference is very obvious.
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Old 07-23-2002, 08:29 PM
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THANK YOU LARRY! I didnt want to say it to start an argument but its virtually impossible. I have a 302 in my mustang and a 351 2v intake manifold laying around from a mach 1 and the two are DEFINATELY different. There is no way a 289/302 manifold would fit a 351 without some kind of spacer.
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Old 07-24-2002, 12:40 PM
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oops,after rereading my post,i did screw up,sorry!

[ July 24, 2002: Message edited by: FASTFORD ]

[ October 15, 2002: Message edited by: FASTFORD ]</p>
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Old 10-14-2002, 05:22 PM
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Ok, here's my input. I'm new to 351W but do a ton of research before I waste my time pulling something from the local pick&pull. I identified about 14 351Ws from 302s, 351Ms (bored to 400cid), 360s, etc. What I found to be the most distinguishing fators are:

1) Intake width
2) Height above the water pump

Once you have seen a few they are relatively easy to ID if you take the time. The intake width is a noticable difference. It is easy to see the difference when you reference the water pump bolts. On a 302 the water pump will basically match the block height (where the heads start). On a 351W the water pump mounts about 2 inches below the start of the heads. But be careful for the 351M etc. They can be deceiving but the water pumps are totally different.

Devin
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Old 10-14-2002, 06:07 PM
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The 302 & 351 intakes will NOT interchange. The difference is as stated in the block deck height. I have 70 351W heads on a 302 and used the 289 Torquer intake on it. It is approximately 8.5" wide. Later, Jay
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Old 10-14-2002, 08:53 PM
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Listen to Jay, He is telling the truth. No ifs,ands or buts about it........................
I have both manifolds setting in my garage and they are not even close to the same size.

[ October 14, 2002: Message edited by: Quepas00 ]</p>
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Old 10-14-2002, 09:22 PM
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You know I am sitting here reading this post again and it reminds me of other post that people give bad information to someone who is looking for a answer. This post is a good example of getting bad info. There is no way in the world that a 302 manifold will fit a 351 or visa versa. Anyone that says differently is completly misinformed and should do a little research before they give advise. Any Ford hot rod book has the answer. If you don't know the answer don't post to the question, why confuse them they are asking us for help not, conflicting post..
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Old 10-14-2002, 10:01 PM
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Yep.
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Old 10-15-2002, 04:19 AM
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Not only is the 351 deck height different ( so no manifold interchange) the 400 is not a bored 351M,it is a stroked 351M and uses the same block. The 360 is an FE motor (352,360,390,406,410,428,427) and nothing like the windsor or cleveland based engines. Finally I stocked that Ford interchange book at the shop and when it came in I looked through it and pulled it because it is so full of errors, I even called the publisher and told them how crappy it was. If you want a good interchange book, find an old Hollander's or Mitchell, they make their living of of them and have for years, and are very accurate,keep the other one for entertainment purposes.
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